<template>
  <div class="header-container">
    <div class="header-left flex-box">
      <el-icon class="icon" size="20" @click="store.commit('collapseMenu')">
        <Fold />
      </el-icon>
      <ul class="flex-box">
        <li
          v-for="(item, index) in selectMenu"
          :key="item.path"
          :class="{ selected: route.path === item.path }"
          class="tab flex-box"
        >
          <el-icon size="12">
            <component :is="item.icon" />
          </el-icon>
          <router-link class="text flex-box" :to="{ path: item.path }">
            {{ item.name }}
          </router-link>

          <el-icon size="12" class="close" @click="closeTab(item, index)"
            ><Close
          /></el-icon>
        </li>
      </ul>
    </div>
    <div class="header-right">
      <el-dropdown @command="handleClick">
        <div class="el-dropdown-link flex-box">
          <el-avatar :src="userInfo.avatar" />
          <p class="user-name">{{ userInfo.name }}</p>
        </div>

        <template #dropdown>
          <el-dropdown-menu>
            <el-dropdown-item>设置</el-dropdown-item>
            <el-dropdown-item>个人中心</el-dropdown-item>
            <el-dropdown-item divided command="cancel"
              >退出登录</el-dropdown-item
            >
          </el-dropdown-menu>
        </template>
      </el-dropdown>
    </div>
  </div>
</template>

<script setup>
import { computed } from "vue";
import { useStore } from "vuex";
import { useRoute, useRouter } from "vue-router";
//拿到store实例
const store = useStore();
//获取ruter 实例
const router = useRouter();
//当前的路由对象
const route = useRoute();

const selectMenu = computed(() => store.state.menu.selectMenu);

const userInfo = JSON.parse(localStorage.getItem("pz_userInfor"));
// const userInfo = localStorage.getItem("pz_userInfor");
// console.log(userInfo, "sssss");
//点击关闭tag
const closeTab = (item, index) => {
  store.commit("closeMenu", item);
  //删除非当前页面不做操作
  if (route.path !== item.path) return;
  //删除当前页面的选项
  const selectMenuData = selectMenu.value;
  //删除最后一项
  if (index === selectMenuData.length) {
    //如果tag只有一个就返回更目录
    if (!selectMenuData.length) {
      router.push("/");
    } else {
      router.push({
        path: selectMenuData[index - 1].path,
      });
    }
  } else {
    //如果删除的是中见的选项
    router.push({
      path: selectMenuData[index].path,
    });
  }
};

const handleClick = (command) => {
  if (command === "cancel") {
    localStorage.removeItem("pz_token");
    localStorage.removeItem("pz_userInfor");
    localStorage.removeItem("pz_v3pz");
    window.location.href = window.location.origin;
  }
};
</script>

<style lang="less" scoped>
.flex-box {
  display: flex;
  align-items: center;
  height: 100%;
}
.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  background-color: #fff;
  padding-right: 25px;

  .header-left {
    height: 100%;
    .icon {
      width: 45px;
      height: 100%;
    }
    .icon:hover {
      background-color: #f5f5f5;
      cursor: pointer;
    }
    .tab {
      padding: 0 10px;
      height: 100%;
      .text {
        margin: 0 5px;
      }
      .close {
        visibility: hidden;
      }
      // &表示同级的意思
      &.selected {
        a {
          color: #409eff;
        }
        i {
          color: #409eff;
        }
        background-color: #f5f5f5;
      }
    }
    .tab:hover {
      background-color: #f5f5f5;
      .close {
        visibility: inherit;
        cursor: pointer;
        color: black;
      }
    }
  }
  .header-right {
    .user-name {
      margin-left: 10px;
    }
  }
  a {
    height: 100%;
    color: #333;
    font-size: 15px;
  }
}
</style>
